chore(@mendix/switch-web): update changelog

Author: uicontent

packages/pluggableWidgets/switch-web/CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 
 ## [Unreleased]
 
+## [4.3.0] - 2025-10-17
+
 ### Fixed
 
 - Improved accessibility and input handling. Clicking the label now toggles the switch.